Social development has got a complex, ambiguous and different concept among the social experts. This ambiguity can be observed in different research and articles written by either foreign scientists or domestic researchers. The investigation on the convention issued by the international conference of social development which is called the Copenhagen convention draw a boundary for this concept. If we look carefully to the trend of social development in Iran, we will realize an increasing rate of social disorders. Knowing about historical bases of these disorders in Iran will be of great benefit to help us find the main obstacles in the way of social development in Iran. Social development, however, seems an inevitable phenomenon in Iran that should be based on citizenship and stability.